verticillaster

noun

ver·​ti·​cil·​las·​ter

ˌvərtəsə̇ˈlastə(r)

plural -s

: a mixed inflorescence (as in many labiates) consisting of a pair of much-condensed nearly sessile cymes arranged around an axis like a true verticil

Word History

Etymology

New Latin, from verticill- + -aster

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